https://4d4f.eu/content/nascarmartinsville-speedway-first-data-500-live-stream
Secondary source as it is not direct :)
West of the Mississippi River has many more mountains due to more recent orogenic processes. Blackhills, Rocky Mountains, Cascades, Sierras.... List goes on.
It looks like a soup ladel. The reason why it is called big is to distinguish it from the more small one. Its real name is ursa major.
The advantage of wind power is that it's a non- polluting energy source.
Happy Studying! ^=^